Picture-film-rewinding device.



R. SHIPMAN.

PICTURE FILM REWINDING DEVICE. APPLICATION FILED APR. 30. 1913.

Patented Feb. 6, 1917.

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PICTURE-FILIVLREWINDIN DEVICE.

To all whom it may concern:

Be it known that T, RALPH SHIPMAN, citizen of the United States, residin at Sunbury, in the county of Northumber and and State of Pennsylvania, have invented certain new and useful Improvements in Picture-Film-Rewinding Devices, of which the following is a specification.

This invention. comprises improvements in rewinding devices for picture film reels,

and it relates particularly .to a means for supporting and operating a reel on which the film is to be wound from-a full reel, the purpose of the invention being to provide a compact device with. speed multiplying means by which the reels may be turned at a speed faster than the speed of the winding shaft, and with means for facilitating the attachment and removal of the reels.

In the accompanying drawing, which illustrates my invention,

Figure 1 is a top plan view of the rewinding mechanism, the casing being shown in horizontal section;

away, a portion onl Fig. 2 1, the partly is a section on the line 22 of Fig. supporting bracket 'being shown in side elevation and partly broken of the casing being shown and the reel eing shown in dotted lines, partly broken away;

Fig. 3 is an end elevation of the casing on a small scale; and, I

Fig. 4 is a perspective view of the clutch member for engaging the reel and the gear connected with said member.

Referring to the drawing, A indicates a suitable casing made of incombustible material, such as sheet iron, and within this casing are arranged two standards or brackets B and C, respectively, the former having a spindle 1 which is adapted to receive a reel 2 from which the film 3 is to be re wound, and the latter having a winding shaft 4 which receives the reel 5, on to which the film is to be wound from the reel 2. The spindle 1 and winding shaft 4 are parallel and both inclined at the same angle to the horizontal so that the reels, when in position upon the spindle and shaft, will be held in their positions by gravity and will not require mechanical devices for preventing them from sliding forward on the spinepecificatton of Letters Patent.

-tion will be clear.

Patented Feb, 6, 1917..

Application filed Apr-i130, 1913. Serial No. 764,654.

able brake device not shown herein in detail as the mechanism on the standard B does not form a part of my present invention.

Referring to the support C and the mechanism associated therewith, the support, as shown, comprises a suitable base 7, an inclined upright 8 and a bracket 9 at the rear of said upright. The winding. shaft 4 is journaled in the upright and bracket and inclines forwardly and upwardly from the front of the upright, and it is provided at its forward end with an angular portion 4*, adapted to be engaged by the socket 10 of a crank 11. This socket, as shown, may be loosely mounted in the door a of the casing so that when thedoor is opened the crank, moving with the door, will be removed from the winding shaft, and a reel may'then be placed upon said shaft -or removed therefrom. When the door is brought to its closed position, thesocket in the crank will again engage the winding shaft.

A counter shaft 12 is also journaled in the upright 8 and bracket 9, parallel with the winding shaft. Upon the winding shaft, in front of the upright: 8, is journaled'a sleeve 13, having connected thereto a clutch member consisting of a key or spline 14, adapted to enter the key-way 15 in the hub 16 of a picture film reel when the latter is placed upon the winding shaft. A small gear 17 is connected with the sleeve 13 and clutch member 14 so as to turn with these parts about the shaft 4. -When the crank is turned the gear 17 is driven at a speed greater than that of the winding shaft 4 by a train of gears 18, 19, and 20, the gear 18 being secured to the shaft 4 and meshing with the smaller gear 19 secured to the shaft 12, and the large gear 20, secured to the coun-' tershaft, meshing with the gear or pinion -17 which is journaled on the winding shaft the front face of the gear 20 and projects beyond its periphery and partly over the front face of the gear 17, forming a stop to prevent sliding movement of the latter gear.

From the foregoing description the opera- VVhen a film is to be wound from the full reel 2 on to an empty reel 5, the full reel is placed upon the spindle v 1 and the empty reel is placed upon the winding shaft 4, the keywa in the hub of the latter reel fitting-over t e key'14a' The door of the casing is then closed and the crank is thereby connected to the winding shaft. When the latter isturned by the crank, the train of back gearing operates the gear 17 and clutchrriember at a speed which is determined by-the diameters of the several. gears, and the film. is thus wound rapidly on to the empty reel. When this reel has been filled, the opening of the door removes the crank from the winding shaft and the reel may then be taken OR, the flange 20*on the gear 20 preventingthe gear 17 and its connected clutch member from being displaced in case of undue friction between the spline 14 and the walls of the key-way 15.

If desired the casing may be omitted, or 7 if desired, the crank may be used in the ordinaryjway, by inserting through an opening reels, a supporting stand, a windin in the door instead of rectly to the door.

What I claim is:

a rewinding device for picture film and a countershaft mounted therem, th e former shaft projecting forwardly froriij the support, a fast gear and a loose gear on the winding shaft, a clutch member connected being connected'dishaft 1 to thelatter gear, said loose gear and clutch 7 member being in front of sad stand, intermediate-gears on said counter-shaft engagin the gears on the winding shaft, one of 531d intermediate gears having a retaining 

